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ESA's first deep space mission, Giotto was designed to help solve the mysteries surrounding Comet Halley by passing as close as possible to the comet's nucleus, which it achieved on 14 March 1986 at a distance of just under 600 km. No-one expected the spacecraft to survive its battering from comet dust during this encounter, but although Giotto was damaged during the flyby, most of its instruments remained operational. The mission was extended to allow a additional encounter with comet Grigg-Skjellerup on 10 July 1992, at a distance of around 200 km. The ingestion of data from Giotto into the Planetary Science Archive took place in 2004, shortly after the PSA was developed. Data from both the Halley encounter and the Giotto Extended Mission to flyby Grigg/Skelerup are available. Note: In addition to the spacecraft data, supporting ground-based observations from the 'Halley Watch' campaign are also available in the PSA. These can be accessed from the 'Earth-Based' tab of the FTP Browser.
Giotto is an international mission and data are jointly archived at PSA and NASA's PDS Small Bodies Node. Access to the Giotto holdings at PDS SBN can be found here.
Giotto Spacecraft Instruments